* Implemented Replaygain analysis for Ogg Vorbis, MP3, MP4, and FLAC
using python-rgain
* Added unit tests for ReplayGainAnalyzer
* Squashed stderr output in ReplayGainAnalyzer and CuePointAnalyzer
* Clean up
* Finished the skeleton of the airtime_analyzer service.
* Basic round-robin, reliable AMQP messaging works.
* Using multiprocess arch so the daemon survives analyzer crashes and
avoids failures propagating to other nodes.
* Basic metadata extractor using Mutagen is done.
* HTTP requests to the File API to are next to come...